I use to have an Intel 7700k; had the issue. I just built a new system using AMD 5950x; same issue. My host is Windows 10 pro and my VMs are all Windows 10 Pro. The original post mentions the exact same errors I get. Yes, I am playing games while numerous VMs are running. The game is Rust, and it uses the Unity engine and is very CPU and GPU heavy. The odd thing, is I can run just my Linux VM and play games all day. It is definitely Windows 10.